AMTECH SYSTEMS, INC. AND SUBSIDIARIES EXHIBIT 11 SCHEDULE OF COMPUTATION OF NET INCOME PER SHARE FOR THE YEARS ENDED SEPTEMBER 30, 1998, 1997 AND 1996 1998 1997 1996 ---------- ---------- ---------- BASIC EARNINGS (LOSS) PER SHARE Weighted average number of common shares outstanding 4,213,482 4,168,111 4,175,728 ========== ========== ========== Income (loss) from continuing operations $ (589,887) $ 237,709 $ 197,591 ========== ========== ========== Basic earnings (loss) per share - continuing $ (.14) $ .06 $ 05 Net income (loss) $ (589,887) $ 237,709 $ 508,683 ========== ========== ========== Basic earnings (loss) per share $ (.14) $ .06 $ .12 DILUTED EARNINGS (LOSS) PER SHARE Average number of common shares outstanding 4,213,482 4,168,111 4,175,728 Incremental shares attributable to warrants/options -- 529,831 1,167,877 ---------- ---------- ---------- Total shares used in the calculation 4,213,482 4,697,942 5,343,605 ========== ========== ========== Income (loss) from continuing operations $ (589,887) $ 237,709 $ 197,591 ========== ========== ========== Diluted earnings (loss) per share - continuing $ (.14) $ .05 $ .04 Net income (loss) $ (589,887) $ 237,709 $ 508,683 ========== ========== ========== Diluted earnings (loss) per share $ (.14) $ .05 $ .10